Page 7 - Building Regulation and Design Guidelines - Structural (Grey Code)

SECTION 1 GEOTECHNICAL GUIDELINES & REGULATIONS SECTION: 1 GEOTECHNICAL GUIDELINES & REGULATIONS

GEOTECHNICAL GUIDELINES & REGULATIONS

1.1 INTRODUCTION geographical maps from the concerned authorities and also with
relevant to the information about magnitude of superimposed
These Design Guidelines & Regulations are intended to provide minimum loads, number of floors, shape of structure, past land use, surface
geotechnical design requirements for RC buildings foundations and substructures topography, geological features and surface drainage.
to safeguard life or limb, environment, property and public welfares.
1.2.2 To specify the number of boreholes (one borehole for each 750 m2
Submission for no objection certificates for different types of applications by for structures small in plane area, exploration should be made at
consultants to be as per this guidelines to avoid any delay for the project or a minimum of three points). For structures of moderate size, it is
abortive work to the CED part. Incomplete submissions will be returned without customary and satisfactory to anticipate making five boreholes, one
review and as such CED shall not be responsible for any delays to the project at each corner and one deeper at the centre or under the core area.
accordingly. CED reserves the right to levy additional appraisal fees for checking In case of structures covering a large area, the exploration points
the incomplete and unchecked submissions noting that this fee shall be paid by may be placed in a grid. The mutual distance between the boreholes
the consultant and not to be passed on to the client.
The Guidelines are aimed to give the designers, geotechnical engineers,
specialist contractors and inspectors a general idea of the basic requirements
for review and checking the structures schemes until approval from the CED
according to principles and standards in order to facilitate and speed the
completion of the work efficiently. It is anticipated that the use of these guidelines
will result in a uniform design and construction of buildings throughout DW
projects. Any requests for revisions must be fully documented and presented
to the Civil Engineering Department for review and acceptance prior to any work
commencement. These guidelines are provided as a reference and may not be
taken as authority to construct without prior review. These guidelines supersede
all previous geotechnical guidelines and are subject to revision without notice.
These Guidelines contain Soil Investigation and Enabling Works requirements
and any items not covered specifically here in shall be in accordance with the
latest editions of British Standards. The Consultant shall ensure that the selected
design standards are the latest editions and fully compatible with Trakhees
Building Regulations and Design Guidelines-Structural.

1.2 BASIC GUIDELINES FOR SOIL INVESTIGATION REPORT
The purposes of site investigation is assessing its suitability for the construction Fig. (1.1) Boreholes Distribution
of civil engineering and building works and of acquiring knowledge of the
characteristics of a site that affect the design and construction of such work and
the security of neighboring land and property. For new works, the objectives of points that considered an appropriate for structures should normally
be 20 – 40 m. Where a certain project consists of a number of
ground investigations are to obtain reliable information to produce an economic adjacent units, one exploration point per unit may suffice if the data
and safe design, to assess any hazards (physical or chemical) associated with of the boreholes have shown a uniform soil formation. In uniform soil
the ground, and to meet the construction requirements. The investigation should conditions, the borings or excavation pits may be partially replaced
be designed to verify and expand information previously collected.
by penetration tests or geophysical soundings. (B.S. 5930-1999). Fig.
1.2.1 Soil investigation report for any structure shall be mainly based (1.1).5930-1999). Fig. (1.1).
upon its location with specified coordinates as per affection plan and

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